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A comment on Inaccurate chart led to unwarranted fears of 5G wireless technology. Parent comment

Re:Inaccurate chart led to unwarranted fears of 5G wireless ... by JohnJamesRambo on Wednesday July 17, 2019 @02:17AM (#20456967)
Maybe stupid question but how does the signal get inside the phone if it can’t get out of a wet paper bag? A return to actual visible antennas?
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Re:Inaccurate chart led to unwarranted fears of 5G wireless ... by goodcanadian on Wednesday July 17, 2019 @02:47AM (#20457107)
Water, specifically, stops mm wave signals. While it can't get through a wet piece of paper, it will go through a dry one just fine.
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Re:Inaccurate chart led to unwarranted fears of 5G wireless ... by maeln on Wednesday July 17, 2019 @05:47AM (#20457859)
Does this mean that we can expect a bad FR2 experience during rainy day ?
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Re:Inaccurate chart led to unwarranted fears of 5G wireless ... by cbruns on Wednesday July 17, 2019 @08:49AM (#20458834)
Yes.
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Re:Inaccurate chart led to unwarranted fears of 5G wireless ... by taneq on Wednesday July 17, 2019 @04:04AM (#20457458)
Presumably the key property is conductivity, rather than water specifically? I'd expect a sheet of tinfoil to stop mm waves as well as wet paper.
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Re:Inaccurate chart led to unwarranted fears of 5G wireless ... by Sharlin on Wednesday July 17, 2019 @04:32AM (#20457581)
Probably it is about the fact that water is polar and readily absorbs microwaves. Which, of course, is how microwave ovens work. (The standard 2.4 GHz frequency is actually not absorbed as well as higher freqs; this is a deliberate choice to let the radiation penetrate deeper into the food and heat it more evenly.)
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